pure water
What pure water means in Combined Science GCSE, as defined for AQA.
Definitions of pure water
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Reference: AQA
Water that contains only H₂O molecules and nothing else, so it has a fixed boiling point of 100 °C at standard pressure and no dissolved ions.
Water that contains no dissolved substances at all.
Topics that use pure water
- Potable water (AQA GCSE)
Related terms
Using pure water in the exam
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